While the exact function and meaning of such works remain unknown, scholars have theorized that they were intended to facilitate a connection between the physical and spiritual worlds because of the: - interlocking square and cylindrical forms, which are believed to symbolize different realms - open cavity in the center, which likely served as a place to hold ritual offerings - dragon motifs, since dragons were believed to be messengers from the gods - finely incised lines, which may have helped individuals to identify and interpret constellations in the night sky